Air-feeding appliance for oil-burning steam-boiler furnaces.



PATENIEfi JULY 30 '1. w. HEINTZELMAN & J. G. CAMP.

I No. 861,515.

LIANGE FOR OIL BURNING STEAM BOILER FURNACES.

AIR FEEDING APP APPLICATION FILED HOV. 5, 1906.

-2 SHEETS-455E! 1.

- FICL4= has.

No. 861515. PATENTED JULYBO, 1907.

, T. w. HBINTZELMAN & J. G. CAMP. AIR FEEDING APPLIANCE FOR OIL BURNINGSTEAM BOILER FURNACES.

APPLICATION FILED NOV. 6, 1906.

2 SHEETSSHEET 2.

LTE' STATES raYLon' w. 'HEINTZELMAN AND JAMES e. 'GAMP, or'sA'on-snnnro, CALIFORNIA.

AIR-FEEDING APPLIANCE FOB DID-BURNING STEAM- BOILEB FURNACES.

Specification of Letters Patent.

Patented July so, seer.

Application filed November 6} 1906. Serial No.'M1,967.

To all whom it may concern: I

Be it known that we, TAYLOR W. HEINTZELM&N and J AMES G. CAMP, both ofSacramento, in the county of Sacramento and State .of California, .havejointly invented a certain new and useful Improvement in Air- FeedingAppliances for Oil-Burning Steam-Boiler Furnaces, of which'improvementthe following is a specification. 1

l Our present invention relates more particularly to, and is animprovement in, oil burning'apparatus of the 'general character of thatset forth in Letters Patent of the United States No. 830,833, grantedand issued to us under date of September 11, 1996, and its objectstruction and ready applicability in connection with fireboxes of theordinary type, whereby the supply of air at the rear of the firebox maybe conveniently and accurately regulated in accordance with theconditions of combustion, the angled deflection of the incoming airadjusted as required,, and enginemen and firemen protected from dangerof injury by flashing in the event of an over supply of oil to theburner.

The improvementclaimed is hereinafter fully set forth. I I r In theaccompanying drawings: Figure l isa front view, in elevation, of an, airfeedingappliance emboclying our invention;. Fig. 2, a horizontal'section through the frame and the adjoining portion of the hood; Fig.3, a side view of the hood, detached; Fig. 4, a bottom view of the sameand of the connected damper; Fig. 5, a vertical longitudinal sectionthrough the appliance complete, and through the adjoining portion of therear water wall of a steam boiler firebox to which it is attached; and,Fig. (3, a plan or top view of the deflecting plate. I

Our improved air feeding appliance, is, similarly to that set forth inour' Letters Patent No. 830,833 aforesaid, herein shown as connected tothe rear water wall,

' 3, of 'the firebox of a tubular steam boiler, and as of air suppliedthrough said passage, by a deflecting plate, '27, The structuralfeatures of improvement in an air feeding appliance of the above generaltype which constitute our present invention will now be described.

In the practice of our invention, we provide a frame, 84, whichcorresponds substantially in contour with the upper air supplypassage,24, and is secured by bolts or rivets, in the ordinary manner, to therear water wall, 3, of the firebox, surrounding and forming an outwardextension of the passage, 24. g This passage may either be one'speciallyformed in the rear water wall, or in application to a steam-boilerdesigned for, or previously used with solid fuel, it may i be theordinary door opening. An air feeding hood, i 25, which is open at itsfront and bottom, and closed i at its top, sides, and back, and whichhas its rear wall ioutwardly inclined, is connected to the frame, 24,,preferably, as shown, by being hinged thereto, the :hoed, in such case,being provided with lugs, 28, ion one side, through which and throughlugs, 24", j on the frame, a hinge pin, 29, passes, and with a lug, i28, on its opposite side, through which passes a pin, "30, fixed to theframe, the hood being held up to the frame by,.any suitablejastening, asa lsey, 31, fitting wall of the'hood, said opening being normallyjclosedby a boilerplate/33.,suspended 0,11 a,pin, 34, fixed. in the rear all ofthe hood The cover plate is held in position by a spring, 35, surrounding the pin and subject 'to adjustment as tot ension by nuts, 36,engaging a screw thread thereon. By swinging the cover plate the fireboxto free the tubes from deposits of carbons. ceous matter. l

- The area-for the passage air through the oponbottom of the hood,'25,and thence to and through'the upper air supply passage, 24, iscontrolled and varied as required by a damper or' regulator, 26, fittingin the bottom opening of the hood, and pivotally connected to the hood,so as to close said opening, either completcly or to any desired degreeless than complete closure. The damper is pivoted to the bond by pins26, 26", passing through lugs, 25, on the'lower ends the lower side ofthe damper, one of the pins, as 26,

by which the damper may be swung upon the common the other, as 26 beingthreaded and provided witha nut, 26", by which the damper may be clampedand held in position when adjusted, with the capacity of ready variationtherefrom as desired.

is to deflect the current bf air entering the firebox through the upperair supply passage, 24, downwardly towards the burner; is connected tothe frame, 24, and extends therefrom, in downwardly inclined position,through the passage, 24, into the firebox. The d eflecting plate ispreferably provided with downwardly turned lateral lipsor flanges, 27,as shown in Fig. 5, and its forward portion, or that projecting into thesaid openings permitting a portion of the entering air to pass throughthe deflecting plate, thereby preventpins, 27, atits rear end, whichrest in sockets in the on the pin, 34, the opening, 32, ,may benncovered. when desired, for the purpose of introducing sand into of theside walls of the hood, and fixed in lugs, 26, on

being turned upwardly, to form an operating handle.

A baffle or deflecting plate, 27, the function of which I in the pin30.: An 'opiening, $2, is formed in the rear firebox, is perforated by aplurality of openings, 27",

ing it from being rapidly burned out. The deflecting plate is supportedon the frame, 24, by lateral bearing frame, and igheld in position by asubstantially vertical stop 'arm,'27 z,formod on one of said pins, andhaving a chipping piece, 27l, which abuts against thea readily be doneby cutting off a portion of the chipping piece; 27l, or byinserting aliner between its end box wall and surrounding said passage, an air feedhood and the-franc, as the case may be.

' The open bottomed hood and the adjustable damper controlling the loweropening 'thereoLare essential and characteristic featuresof ourinvention which have been found, in practical and continued service, tobe of substantial advantage.' The closed rear wall of the hood serves todeflect fiame caused by flashing under an excessive supply oi'oil,downwardly on the deck of the locomotive, and thereby 'protects theengineman and fireman from injury by the horizontal discharge of theflame which would otherwise occur. This wall, with its opening and cover:plate, also provides convenient means for sanding the tubes whenrequired.

The location of the damper, and itspiv'otal connection to the bottoms ofthe side walls of the hood, are such as to enable its control of theentering current oiair, and 1 its adjustment for variation of the amountof air ad mitted, to be effectively exerted and readily manipulated.

We claim as our invention and desire to secure by Letters Patent:

The combination with a steam boiler fire box having an upper airsupplypassagc, of a frame connected to the tire removnbly connected tosaid frame and closed at its top sides. and rear, the bottom thereofbeing open, an adjustable damper connected to said hood and controllingthe open bottom thereof, said rear wall provided with a sand supplyopening, :1 cover plate controlling said opening, a deflecting platehaving a plurality of perforations in its forward portion and fitting atIts rear in the frame and projecting forwardly and downwardly throughthe air supply pussuge and means for adjusting the inclination of thedeflecting plate.

TAYLOR \V. HEINTZELMAN. JAMES G. CAMP.

Witnesses J. E. MAHANEY, J Ni L Bu'rnnn.

